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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: HF/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/SDD
 hartrees
Energy at 0K-573.460844
Energy at 298.15K-573.464281
HF Energy-573.460844
Nuclear repulsion energy354.773879
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/SDD
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3412 3072 8.34      
2 A' 1554 1399 3.44      
3 A' 1414 1273 132.81      
4 A' 1257 1132 214.11      
5 A' 1162 1046 149.17      
6 A' 897 808 84.46      
7 A' 724 652 45.55      
8 A' 573 516 30.87      
9 A' 513 462 22.72      
10 A' 368 331 0.22      
11 A' 255 229 8.54      
12 A" 1475 1328 6.61      
13 A" 1276 1149 389.26      
14 A" 1210 1089 91.71      
15 A" 589 530 3.09      
16 A" 419 377 4.21      
17 A" 219 197 6.15      
18 A" 76 68 2.16      

Unscaled Zero Point Vibrational Energy (zpe) 8695.6 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 7829.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/SDD
ABC
0.11861 0.07872 0.06513

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.120 -0.595 0.000
C2 -0.614 0.745 0.000
F3 1.468 -0.452 0.000
F4 -0.238 -1.314 1.101
F5 -0.238 -1.314 -1.101
F6 -0.238 1.457 -1.116
F7 -0.238 1.457 1.116
H8 -1.680 0.609 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.52831.35531.36311.36312.36302.36302.1656
C21.52832.40172.36562.36561.37611.37611.0742
F31.35532.40172.20562.20562.79232.79233.3217
F41.36312.36562.20562.20293.54892.77102.6443
F51.36312.36562.20562.20292.77103.54892.6443
F62.36301.37612.79233.54892.77102.23182.0109
F72.36301.37612.79232.77103.54892.23182.0109
H82.16561.07423.32172.64432.64432.01092.0109

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.785 C1 C2 F7 108.785
C1 C2 H8 111.443 C2 C1 F3 112.653
C2 C1 F4 109.665 C2 C1 F5 109.665
F3 C1 F4 108.459 F3 C1 F5 108.459
F4 C1 F5 107.812 F6 C2 F7 108.374
F6 C2 H8 109.696 F7 C2 H8 109.696
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.817      
2 C 0.374      
3 F -0.268      
4 F -0.283      
5 F -0.283      
6 F -0.302      
7 F -0.302      
8 H 0.247      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.438 -0.058 0.000 2.439
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.807 -1.480 0.000
y -1.480 -42.267 0.000
z 0.000 0.000 -42.210
Traceless
 xyz
x 7.431 -1.480 0.000
y -1.480 -3.758 0.000
z 0.000 0.000 -3.673
Polar
3z2-r2-7.346
x2-y27.460
xy-1.480
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.834 0.158 0.000
y 0.158 2.845 0.000
z 0.000 0.000 3.266


<r2> (average value of r2) Å2
<r2> 172.632
(<r2>)1/2 13.139